Tables and figures:
Table 1. Basic lab-work (WBC: white blood cell, RI: reticulocyte index, LDH: lactate dehydrogenase, PS: peripheral smear, Hgb: hemoglobin, HgbE: hemoglobin electrophoresis CRP: c-reactive protein, MetHgb: methemoglobin)
Table 2 . Reported cases of methemoglobinemia and G6PD deficiency secondary to favism (Hemoglobin: Hgb, Methemoglobin: MetHgb (normal 0 - 1.5%), Glucose-6-phosphate dehydrogenase: G6PD)
Figure 1 . Mechanism of reduction of methemoglobin to hemoglobin by methylene blue; concept taken from Percy MJ et al. [14].
Figure 2. Trend of hemoglobin of the patient throughout the hospital stay.